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5b435de0 AS |
1 | /* |
2 | * Copyright (c) 2010 Broadcom Corporation | |
3 | * | |
4 | * Permission to use, copy, modify, and/or distribute this software for any | |
5 | * purpose with or without fee is hereby granted, provided that the above | |
6 | * copyright notice and this permission notice appear in all copies. | |
7 | * | |
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY | |
11 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION | |
13 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN | |
14 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
15 | */ | |
16 | ||
17 | #define __UNDEF_NO_VERSION__ | |
18 | ||
19 | #include <linux/etherdevice.h> | |
5b435de0 AS |
20 | #include <linux/sched.h> |
21 | #include <linux/firmware.h> | |
22 | #include <linux/interrupt.h> | |
45296236 | 23 | #include <linux/module.h> |
2e756560 | 24 | #include <linux/bcma/bcma.h> |
5b435de0 AS |
25 | #include <net/mac80211.h> |
26 | #include <defs.h> | |
27 | #include "nicpci.h" | |
28 | #include "phy/phy_int.h" | |
29 | #include "d11.h" | |
30 | #include "channel.h" | |
31 | #include "scb.h" | |
32 | #include "pub.h" | |
33 | #include "ucode_loader.h" | |
34 | #include "mac80211_if.h" | |
35 | #include "main.h" | |
36 | ||
37 | #define N_TX_QUEUES 4 /* #tx queues on mac80211<->driver interface */ | |
38 | ||
39 | /* Flags we support */ | |
40 | #define MAC_FILTERS (FIF_PROMISC_IN_BSS | \ | |
41 | FIF_ALLMULTI | \ | |
42 | FIF_FCSFAIL | \ | |
5b435de0 AS |
43 | FIF_CONTROL | \ |
44 | FIF_OTHER_BSS | \ | |
be667669 AB |
45 | FIF_BCN_PRBRESP_PROMISC | \ |
46 | FIF_PSPOLL) | |
5b435de0 AS |
47 | |
48 | #define CHAN2GHZ(channel, freqency, chflags) { \ | |
49 | .band = IEEE80211_BAND_2GHZ, \ | |
50 | .center_freq = (freqency), \ | |
51 | .hw_value = (channel), \ | |
52 | .flags = chflags, \ | |
53 | .max_antenna_gain = 0, \ | |
54 | .max_power = 19, \ | |
55 | } | |
56 | ||
57 | #define CHAN5GHZ(channel, chflags) { \ | |
58 | .band = IEEE80211_BAND_5GHZ, \ | |
59 | .center_freq = 5000 + 5*(channel), \ | |
60 | .hw_value = (channel), \ | |
61 | .flags = chflags, \ | |
62 | .max_antenna_gain = 0, \ | |
63 | .max_power = 21, \ | |
64 | } | |
65 | ||
66 | #define RATE(rate100m, _flags) { \ | |
67 | .bitrate = (rate100m), \ | |
68 | .flags = (_flags), \ | |
69 | .hw_value = (rate100m / 5), \ | |
70 | } | |
71 | ||
72 | struct firmware_hdr { | |
73 | __le32 offset; | |
74 | __le32 len; | |
75 | __le32 idx; | |
76 | }; | |
77 | ||
78 | static const char * const brcms_firmwares[MAX_FW_IMAGES] = { | |
79 | "brcm/bcm43xx", | |
80 | NULL | |
81 | }; | |
82 | ||
83 | static int n_adapters_found; | |
84 | ||
85 | MODULE_AUTHOR("Broadcom Corporation"); | |
86 | MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver."); | |
87 | MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN cards"); | |
88 | MODULE_LICENSE("Dual BSD/GPL"); | |
89 | ||
5b435de0 | 90 | |
2e756560 AS |
91 | /* recognized BCMA Core IDs */ |
92 | static struct bcma_device_id brcms_coreid_table[] = { | |
eb032f03 AS |
93 | BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 23, BCMA_ANY_CLASS), |
94 | BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 24, BCMA_ANY_CLASS), | |
2e756560 AS |
95 | BCMA_CORETABLE_END |
96 | }; | |
97 | MODULE_DEVICE_TABLE(bcma, brcms_coreid_table); | |
5b435de0 | 98 | |
8ae74654 | 99 | #ifdef DEBUG |
5b435de0 AS |
100 | static int msglevel = 0xdeadbeef; |
101 | module_param(msglevel, int, 0); | |
8ae74654 | 102 | #endif /* DEBUG */ |
5b435de0 AS |
103 | |
104 | static struct ieee80211_channel brcms_2ghz_chantable[] = { | |
105 | CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS), | |
106 | CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS), | |
107 | CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS), | |
108 | CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS), | |
109 | CHAN2GHZ(5, 2432, 0), | |
110 | CHAN2GHZ(6, 2437, 0), | |
111 | CHAN2GHZ(7, 2442, 0), | |
112 | CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS), | |
113 | CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS), | |
114 | CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS), | |
115 | CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS), | |
116 | CHAN2GHZ(12, 2467, | |
117 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS | | |
118 | IEEE80211_CHAN_NO_HT40PLUS), | |
119 | CHAN2GHZ(13, 2472, | |
120 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS | | |
121 | IEEE80211_CHAN_NO_HT40PLUS), | |
122 | CHAN2GHZ(14, 2484, | |
123 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS | | |
124 | IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS) | |
125 | }; | |
126 | ||
127 | static struct ieee80211_channel brcms_5ghz_nphy_chantable[] = { | |
128 | /* UNII-1 */ | |
129 | CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS), | |
130 | CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS), | |
131 | CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS), | |
132 | CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS), | |
133 | /* UNII-2 */ | |
134 | CHAN5GHZ(52, | |
135 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
136 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), | |
137 | CHAN5GHZ(56, | |
138 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
139 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), | |
140 | CHAN5GHZ(60, | |
141 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
142 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), | |
143 | CHAN5GHZ(64, | |
144 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
145 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), | |
146 | /* MID */ | |
147 | CHAN5GHZ(100, | |
148 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
149 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), | |
150 | CHAN5GHZ(104, | |
151 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
152 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), | |
153 | CHAN5GHZ(108, | |
154 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
155 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), | |
156 | CHAN5GHZ(112, | |
157 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
158 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), | |
159 | CHAN5GHZ(116, | |
160 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
161 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), | |
162 | CHAN5GHZ(120, | |
163 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
164 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), | |
165 | CHAN5GHZ(124, | |
166 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
167 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), | |
168 | CHAN5GHZ(128, | |
169 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
170 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), | |
171 | CHAN5GHZ(132, | |
172 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
173 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), | |
174 | CHAN5GHZ(136, | |
175 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
176 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), | |
177 | CHAN5GHZ(140, | |
178 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
179 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS | | |
180 | IEEE80211_CHAN_NO_HT40MINUS), | |
181 | /* UNII-3 */ | |
182 | CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS), | |
183 | CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS), | |
184 | CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS), | |
185 | CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS), | |
186 | CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS) | |
187 | }; | |
188 | ||
189 | /* | |
190 | * The rate table is used for both 2.4G and 5G rates. The | |
191 | * latter being a subset as it does not support CCK rates. | |
192 | */ | |
193 | static struct ieee80211_rate legacy_ratetable[] = { | |
194 | RATE(10, 0), | |
195 | RATE(20, IEEE80211_RATE_SHORT_PREAMBLE), | |
196 | RATE(55, IEEE80211_RATE_SHORT_PREAMBLE), | |
197 | RATE(110, IEEE80211_RATE_SHORT_PREAMBLE), | |
198 | RATE(60, 0), | |
199 | RATE(90, 0), | |
200 | RATE(120, 0), | |
201 | RATE(180, 0), | |
202 | RATE(240, 0), | |
203 | RATE(360, 0), | |
204 | RATE(480, 0), | |
205 | RATE(540, 0), | |
206 | }; | |
207 | ||
208 | static const struct ieee80211_supported_band brcms_band_2GHz_nphy_template = { | |
209 | .band = IEEE80211_BAND_2GHZ, | |
210 | .channels = brcms_2ghz_chantable, | |
211 | .n_channels = ARRAY_SIZE(brcms_2ghz_chantable), | |
212 | .bitrates = legacy_ratetable, | |
213 | .n_bitrates = ARRAY_SIZE(legacy_ratetable), | |
214 | .ht_cap = { | |
215 | /* from include/linux/ieee80211.h */ | |
216 | .cap = IEEE80211_HT_CAP_GRN_FLD | | |
6b1a89af | 217 | IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40, |
5b435de0 AS |
218 | .ht_supported = true, |
219 | .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, | |
220 | .ampdu_density = AMPDU_DEF_MPDU_DENSITY, | |
221 | .mcs = { | |
222 | /* placeholders for now */ | |
223 | .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0}, | |
224 | .rx_highest = cpu_to_le16(500), | |
225 | .tx_params = IEEE80211_HT_MCS_TX_DEFINED} | |
226 | } | |
227 | }; | |
228 | ||
229 | static const struct ieee80211_supported_band brcms_band_5GHz_nphy_template = { | |
230 | .band = IEEE80211_BAND_5GHZ, | |
231 | .channels = brcms_5ghz_nphy_chantable, | |
232 | .n_channels = ARRAY_SIZE(brcms_5ghz_nphy_chantable), | |
233 | .bitrates = legacy_ratetable + BRCMS_LEGACY_5G_RATE_OFFSET, | |
234 | .n_bitrates = ARRAY_SIZE(legacy_ratetable) - | |
235 | BRCMS_LEGACY_5G_RATE_OFFSET, | |
236 | .ht_cap = { | |
237 | .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 | | |
6b1a89af | 238 | IEEE80211_HT_CAP_SGI_40, |
5b435de0 AS |
239 | .ht_supported = true, |
240 | .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, | |
241 | .ampdu_density = AMPDU_DEF_MPDU_DENSITY, | |
242 | .mcs = { | |
243 | /* placeholders for now */ | |
244 | .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0}, | |
245 | .rx_highest = cpu_to_le16(500), | |
246 | .tx_params = IEEE80211_HT_MCS_TX_DEFINED} | |
247 | } | |
248 | }; | |
249 | ||
250 | /* flags the given rate in rateset as requested */ | |
251 | static void brcms_set_basic_rate(struct brcm_rateset *rs, u16 rate, bool is_br) | |
252 | { | |
253 | u32 i; | |
254 | ||
255 | for (i = 0; i < rs->count; i++) { | |
256 | if (rate != (rs->rates[i] & 0x7f)) | |
257 | continue; | |
258 | ||
259 | if (is_br) | |
260 | rs->rates[i] |= BRCMS_RATE_FLAG; | |
261 | else | |
262 | rs->rates[i] &= BRCMS_RATE_MASK; | |
263 | return; | |
264 | } | |
265 | } | |
266 | ||
267 | static void brcms_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | |
268 | { | |
269 | struct brcms_info *wl = hw->priv; | |
270 | ||
271 | spin_lock_bh(&wl->lock); | |
272 | if (!wl->pub->up) { | |
273 | wiphy_err(wl->wiphy, "ops->tx called while down\n"); | |
274 | kfree_skb(skb); | |
275 | goto done; | |
276 | } | |
277 | brcms_c_sendpkt_mac80211(wl->wlc, skb, hw); | |
278 | done: | |
279 | spin_unlock_bh(&wl->lock); | |
280 | } | |
281 | ||
282 | static int brcms_ops_start(struct ieee80211_hw *hw) | |
283 | { | |
284 | struct brcms_info *wl = hw->priv; | |
285 | bool blocked; | |
2646c46d | 286 | int err; |
5b435de0 AS |
287 | |
288 | ieee80211_wake_queues(hw); | |
289 | spin_lock_bh(&wl->lock); | |
290 | blocked = brcms_rfkill_set_hw_state(wl); | |
291 | spin_unlock_bh(&wl->lock); | |
292 | if (!blocked) | |
293 | wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy); | |
294 | ||
2646c46d | 295 | spin_lock_bh(&wl->lock); |
dc460127 RV |
296 | /* avoid acknowledging frames before a non-monitor device is added */ |
297 | wl->mute_tx = true; | |
298 | ||
2646c46d RV |
299 | if (!wl->pub->up) |
300 | err = brcms_up(wl); | |
301 | else | |
302 | err = -ENODEV; | |
303 | spin_unlock_bh(&wl->lock); | |
304 | ||
305 | if (err != 0) | |
306 | wiphy_err(hw->wiphy, "%s: brcms_up() returned %d\n", __func__, | |
307 | err); | |
308 | return err; | |
5b435de0 AS |
309 | } |
310 | ||
311 | static void brcms_ops_stop(struct ieee80211_hw *hw) | |
312 | { | |
2646c46d RV |
313 | struct brcms_info *wl = hw->priv; |
314 | int status; | |
315 | ||
5b435de0 | 316 | ieee80211_stop_queues(hw); |
2646c46d RV |
317 | |
318 | if (wl->wlc == NULL) | |
319 | return; | |
320 | ||
321 | spin_lock_bh(&wl->lock); | |
322 | status = brcms_c_chipmatch(wl->wlc->hw->vendorid, | |
323 | wl->wlc->hw->deviceid); | |
324 | spin_unlock_bh(&wl->lock); | |
325 | if (!status) { | |
326 | wiphy_err(wl->wiphy, | |
327 | "wl: brcms_ops_stop: chipmatch failed\n"); | |
328 | return; | |
329 | } | |
330 | ||
331 | /* put driver in down state */ | |
332 | spin_lock_bh(&wl->lock); | |
333 | brcms_down(wl); | |
334 | spin_unlock_bh(&wl->lock); | |
5b435de0 AS |
335 | } |
336 | ||
337 | static int | |
338 | brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) | |
339 | { | |
dc460127 RV |
340 | struct brcms_info *wl = hw->priv; |
341 | ||
5b435de0 | 342 | /* Just STA for now */ |
1525662a | 343 | if (vif->type != NL80211_IFTYPE_STATION) { |
5b435de0 AS |
344 | wiphy_err(hw->wiphy, "%s: Attempt to add type %d, only" |
345 | " STA for now\n", __func__, vif->type); | |
346 | return -EOPNOTSUPP; | |
347 | } | |
348 | ||
dc460127 RV |
349 | wl->mute_tx = false; |
350 | brcms_c_mute(wl->wlc, false); | |
351 | ||
2646c46d | 352 | return 0; |
5b435de0 AS |
353 | } |
354 | ||
355 | static void | |
356 | brcms_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) | |
357 | { | |
5b435de0 AS |
358 | } |
359 | ||
360 | static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed) | |
361 | { | |
362 | struct ieee80211_conf *conf = &hw->conf; | |
363 | struct brcms_info *wl = hw->priv; | |
364 | int err = 0; | |
365 | int new_int; | |
366 | struct wiphy *wiphy = hw->wiphy; | |
367 | ||
368 | spin_lock_bh(&wl->lock); | |
369 | if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) { | |
370 | brcms_c_set_beacon_listen_interval(wl->wlc, | |
371 | conf->listen_interval); | |
372 | } | |
373 | if (changed & IEEE80211_CONF_CHANGE_MONITOR) | |
be667669 | 374 | wiphy_dbg(wiphy, "%s: change monitor mode: %s\n", |
5b435de0 AS |
375 | __func__, conf->flags & IEEE80211_CONF_MONITOR ? |
376 | "true" : "false"); | |
377 | if (changed & IEEE80211_CONF_CHANGE_PS) | |
378 | wiphy_err(wiphy, "%s: change power-save mode: %s (implement)\n", | |
379 | __func__, conf->flags & IEEE80211_CONF_PS ? | |
380 | "true" : "false"); | |
381 | ||
382 | if (changed & IEEE80211_CONF_CHANGE_POWER) { | |
383 | err = brcms_c_set_tx_power(wl->wlc, conf->power_level); | |
384 | if (err < 0) { | |
385 | wiphy_err(wiphy, "%s: Error setting power_level\n", | |
386 | __func__); | |
387 | goto config_out; | |
388 | } | |
389 | new_int = brcms_c_get_tx_power(wl->wlc); | |
390 | if (new_int != conf->power_level) | |
391 | wiphy_err(wiphy, "%s: Power level req != actual, %d %d" | |
392 | "\n", __func__, conf->power_level, | |
393 | new_int); | |
394 | } | |
395 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { | |
396 | if (conf->channel_type == NL80211_CHAN_HT20 || | |
397 | conf->channel_type == NL80211_CHAN_NO_HT) | |
398 | err = brcms_c_set_channel(wl->wlc, | |
399 | conf->channel->hw_value); | |
400 | else | |
401 | err = -ENOTSUPP; | |
402 | } | |
403 | if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) | |
404 | err = brcms_c_set_rate_limit(wl->wlc, | |
405 | conf->short_frame_max_tx_count, | |
406 | conf->long_frame_max_tx_count); | |
407 | ||
408 | config_out: | |
409 | spin_unlock_bh(&wl->lock); | |
410 | return err; | |
411 | } | |
412 | ||
413 | static void | |
414 | brcms_ops_bss_info_changed(struct ieee80211_hw *hw, | |
415 | struct ieee80211_vif *vif, | |
416 | struct ieee80211_bss_conf *info, u32 changed) | |
417 | { | |
418 | struct brcms_info *wl = hw->priv; | |
419 | struct wiphy *wiphy = hw->wiphy; | |
420 | ||
421 | if (changed & BSS_CHANGED_ASSOC) { | |
422 | /* association status changed (associated/disassociated) | |
423 | * also implies a change in the AID. | |
424 | */ | |
425 | wiphy_err(wiphy, "%s: %s: %sassociated\n", KBUILD_MODNAME, | |
426 | __func__, info->assoc ? "" : "dis"); | |
427 | spin_lock_bh(&wl->lock); | |
428 | brcms_c_associate_upd(wl->wlc, info->assoc); | |
429 | spin_unlock_bh(&wl->lock); | |
430 | } | |
431 | if (changed & BSS_CHANGED_ERP_SLOT) { | |
432 | s8 val; | |
433 | ||
434 | /* slot timing changed */ | |
435 | if (info->use_short_slot) | |
436 | val = 1; | |
437 | else | |
438 | val = 0; | |
439 | spin_lock_bh(&wl->lock); | |
440 | brcms_c_set_shortslot_override(wl->wlc, val); | |
441 | spin_unlock_bh(&wl->lock); | |
442 | } | |
443 | ||
444 | if (changed & BSS_CHANGED_HT) { | |
445 | /* 802.11n parameters changed */ | |
446 | u16 mode = info->ht_operation_mode; | |
447 | ||
448 | spin_lock_bh(&wl->lock); | |
449 | brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_CFG, | |
450 | mode & IEEE80211_HT_OP_MODE_PROTECTION); | |
451 | brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_NONGF, | |
452 | mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); | |
453 | brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_OBSS, | |
454 | mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT); | |
455 | spin_unlock_bh(&wl->lock); | |
456 | } | |
457 | if (changed & BSS_CHANGED_BASIC_RATES) { | |
458 | struct ieee80211_supported_band *bi; | |
459 | u32 br_mask, i; | |
460 | u16 rate; | |
461 | struct brcm_rateset rs; | |
462 | int error; | |
463 | ||
464 | /* retrieve the current rates */ | |
465 | spin_lock_bh(&wl->lock); | |
466 | brcms_c_get_current_rateset(wl->wlc, &rs); | |
467 | spin_unlock_bh(&wl->lock); | |
468 | ||
469 | br_mask = info->basic_rates; | |
470 | bi = hw->wiphy->bands[brcms_c_get_curband(wl->wlc)]; | |
471 | for (i = 0; i < bi->n_bitrates; i++) { | |
472 | /* convert to internal rate value */ | |
473 | rate = (bi->bitrates[i].bitrate << 1) / 10; | |
474 | ||
475 | /* set/clear basic rate flag */ | |
476 | brcms_set_basic_rate(&rs, rate, br_mask & 1); | |
477 | br_mask >>= 1; | |
478 | } | |
479 | ||
480 | /* update the rate set */ | |
481 | spin_lock_bh(&wl->lock); | |
482 | error = brcms_c_set_rateset(wl->wlc, &rs); | |
483 | spin_unlock_bh(&wl->lock); | |
484 | if (error) | |
485 | wiphy_err(wiphy, "changing basic rates failed: %d\n", | |
486 | error); | |
487 | } | |
488 | if (changed & BSS_CHANGED_BEACON_INT) { | |
489 | /* Beacon interval changed */ | |
490 | spin_lock_bh(&wl->lock); | |
491 | brcms_c_set_beacon_period(wl->wlc, info->beacon_int); | |
492 | spin_unlock_bh(&wl->lock); | |
493 | } | |
494 | if (changed & BSS_CHANGED_BSSID) { | |
495 | /* BSSID changed, for whatever reason (IBSS and managed mode) */ | |
496 | spin_lock_bh(&wl->lock); | |
497 | brcms_c_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET, info->bssid); | |
498 | spin_unlock_bh(&wl->lock); | |
499 | } | |
500 | if (changed & BSS_CHANGED_BEACON) | |
501 | /* Beacon data changed, retrieve new beacon (beaconing modes) */ | |
502 | wiphy_err(wiphy, "%s: beacon changed\n", __func__); | |
503 | ||
504 | if (changed & BSS_CHANGED_BEACON_ENABLED) { | |
505 | /* Beaconing should be enabled/disabled (beaconing modes) */ | |
506 | wiphy_err(wiphy, "%s: Beacon enabled: %s\n", __func__, | |
507 | info->enable_beacon ? "true" : "false"); | |
508 | } | |
509 | ||
510 | if (changed & BSS_CHANGED_CQM) { | |
511 | /* Connection quality monitor config changed */ | |
512 | wiphy_err(wiphy, "%s: cqm change: threshold %d, hys %d " | |
513 | " (implement)\n", __func__, info->cqm_rssi_thold, | |
514 | info->cqm_rssi_hyst); | |
515 | } | |
516 | ||
517 | if (changed & BSS_CHANGED_IBSS) { | |
518 | /* IBSS join status changed */ | |
519 | wiphy_err(wiphy, "%s: IBSS joined: %s (implement)\n", __func__, | |
520 | info->ibss_joined ? "true" : "false"); | |
521 | } | |
522 | ||
523 | if (changed & BSS_CHANGED_ARP_FILTER) { | |
524 | /* Hardware ARP filter address list or state changed */ | |
525 | wiphy_err(wiphy, "%s: arp filtering: enabled %s, count %d" | |
526 | " (implement)\n", __func__, info->arp_filter_enabled ? | |
527 | "true" : "false", info->arp_addr_cnt); | |
528 | } | |
529 | ||
530 | if (changed & BSS_CHANGED_QOS) { | |
531 | /* | |
532 | * QoS for this association was enabled/disabled. | |
533 | * Note that it is only ever disabled for station mode. | |
534 | */ | |
535 | wiphy_err(wiphy, "%s: qos enabled: %s (implement)\n", __func__, | |
536 | info->qos ? "true" : "false"); | |
537 | } | |
538 | return; | |
539 | } | |
540 | ||
541 | static void | |
542 | brcms_ops_configure_filter(struct ieee80211_hw *hw, | |
543 | unsigned int changed_flags, | |
544 | unsigned int *total_flags, u64 multicast) | |
545 | { | |
546 | struct brcms_info *wl = hw->priv; | |
547 | struct wiphy *wiphy = hw->wiphy; | |
548 | ||
549 | changed_flags &= MAC_FILTERS; | |
550 | *total_flags &= MAC_FILTERS; | |
be667669 | 551 | |
5b435de0 | 552 | if (changed_flags & FIF_PROMISC_IN_BSS) |
be667669 | 553 | wiphy_dbg(wiphy, "FIF_PROMISC_IN_BSS\n"); |
5b435de0 | 554 | if (changed_flags & FIF_ALLMULTI) |
be667669 | 555 | wiphy_dbg(wiphy, "FIF_ALLMULTI\n"); |
5b435de0 | 556 | if (changed_flags & FIF_FCSFAIL) |
be667669 | 557 | wiphy_dbg(wiphy, "FIF_FCSFAIL\n"); |
5b435de0 | 558 | if (changed_flags & FIF_CONTROL) |
be667669 | 559 | wiphy_dbg(wiphy, "FIF_CONTROL\n"); |
5b435de0 | 560 | if (changed_flags & FIF_OTHER_BSS) |
be667669 AB |
561 | wiphy_dbg(wiphy, "FIF_OTHER_BSS\n"); |
562 | if (changed_flags & FIF_PSPOLL) | |
563 | wiphy_dbg(wiphy, "FIF_PSPOLL\n"); | |
564 | if (changed_flags & FIF_BCN_PRBRESP_PROMISC) | |
565 | wiphy_dbg(wiphy, "FIF_BCN_PRBRESP_PROMISC\n"); | |
566 | ||
567 | spin_lock_bh(&wl->lock); | |
568 | brcms_c_mac_promisc(wl->wlc, *total_flags); | |
569 | spin_unlock_bh(&wl->lock); | |
5b435de0 AS |
570 | return; |
571 | } | |
572 | ||
573 | static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw) | |
574 | { | |
575 | struct brcms_info *wl = hw->priv; | |
576 | spin_lock_bh(&wl->lock); | |
577 | brcms_c_scan_start(wl->wlc); | |
578 | spin_unlock_bh(&wl->lock); | |
579 | return; | |
580 | } | |
581 | ||
582 | static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw) | |
583 | { | |
584 | struct brcms_info *wl = hw->priv; | |
585 | spin_lock_bh(&wl->lock); | |
586 | brcms_c_scan_stop(wl->wlc); | |
587 | spin_unlock_bh(&wl->lock); | |
588 | return; | |
589 | } | |
590 | ||
591 | static int | |
592 | brcms_ops_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, | |
593 | const struct ieee80211_tx_queue_params *params) | |
594 | { | |
595 | struct brcms_info *wl = hw->priv; | |
596 | ||
597 | spin_lock_bh(&wl->lock); | |
598 | brcms_c_wme_setparams(wl->wlc, queue, params, true); | |
599 | spin_unlock_bh(&wl->lock); | |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
604 | static int | |
605 | brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, | |
606 | struct ieee80211_sta *sta) | |
607 | { | |
608 | struct brcms_info *wl = hw->priv; | |
609 | struct scb *scb = &wl->wlc->pri_scb; | |
610 | ||
611 | brcms_c_init_scb(scb); | |
612 | ||
613 | wl->pub->global_ampdu = &(scb->scb_ampdu); | |
614 | wl->pub->global_ampdu->scb = scb; | |
615 | wl->pub->global_ampdu->max_pdu = 16; | |
616 | ||
5b435de0 AS |
617 | /* |
618 | * minstrel_ht initiates addBA on our behalf by calling | |
619 | * ieee80211_start_tx_ba_session() | |
620 | */ | |
621 | return 0; | |
622 | } | |
623 | ||
624 | static int | |
625 | brcms_ops_ampdu_action(struct ieee80211_hw *hw, | |
626 | struct ieee80211_vif *vif, | |
627 | enum ieee80211_ampdu_mlme_action action, | |
628 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, | |
629 | u8 buf_size) | |
630 | { | |
631 | struct brcms_info *wl = hw->priv; | |
632 | struct scb *scb = &wl->wlc->pri_scb; | |
633 | int status; | |
634 | ||
635 | if (WARN_ON(scb->magic != SCB_MAGIC)) | |
636 | return -EIDRM; | |
637 | switch (action) { | |
638 | case IEEE80211_AMPDU_RX_START: | |
639 | break; | |
640 | case IEEE80211_AMPDU_RX_STOP: | |
641 | break; | |
642 | case IEEE80211_AMPDU_TX_START: | |
643 | spin_lock_bh(&wl->lock); | |
644 | status = brcms_c_aggregatable(wl->wlc, tid); | |
645 | spin_unlock_bh(&wl->lock); | |
646 | if (!status) { | |
647 | wiphy_err(wl->wiphy, "START: tid %d is not agg\'able\n", | |
648 | tid); | |
649 | return -EINVAL; | |
650 | } | |
651 | ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); | |
652 | break; | |
653 | ||
654 | case IEEE80211_AMPDU_TX_STOP: | |
655 | spin_lock_bh(&wl->lock); | |
656 | brcms_c_ampdu_flush(wl->wlc, sta, tid); | |
657 | spin_unlock_bh(&wl->lock); | |
658 | ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); | |
659 | break; | |
660 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
661 | /* | |
662 | * BA window size from ADDBA response ('buf_size') defines how | |
663 | * many outstanding MPDUs are allowed for the BA stream by | |
664 | * recipient and traffic class. 'ampdu_factor' gives maximum | |
665 | * AMPDU size. | |
666 | */ | |
667 | spin_lock_bh(&wl->lock); | |
668 | brcms_c_ampdu_tx_operational(wl->wlc, tid, buf_size, | |
669 | (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR + | |
670 | sta->ht_cap.ampdu_factor)) - 1); | |
671 | spin_unlock_bh(&wl->lock); | |
672 | /* Power save wakeup */ | |
673 | break; | |
674 | default: | |
675 | wiphy_err(wl->wiphy, "%s: Invalid command, ignoring\n", | |
676 | __func__); | |
677 | } | |
678 | ||
679 | return 0; | |
680 | } | |
681 | ||
682 | static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw) | |
683 | { | |
684 | struct brcms_info *wl = hw->priv; | |
685 | bool blocked; | |
686 | ||
687 | spin_lock_bh(&wl->lock); | |
688 | blocked = brcms_c_check_radio_disabled(wl->wlc); | |
689 | spin_unlock_bh(&wl->lock); | |
690 | ||
691 | wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked); | |
692 | } | |
693 | ||
694 | static void brcms_ops_flush(struct ieee80211_hw *hw, bool drop) | |
695 | { | |
696 | struct brcms_info *wl = hw->priv; | |
697 | ||
698 | no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false"); | |
699 | ||
700 | /* wait for packet queue and dma fifos to run empty */ | |
701 | spin_lock_bh(&wl->lock); | |
702 | brcms_c_wait_for_tx_completion(wl->wlc, drop); | |
703 | spin_unlock_bh(&wl->lock); | |
704 | } | |
705 | ||
706 | static const struct ieee80211_ops brcms_ops = { | |
707 | .tx = brcms_ops_tx, | |
708 | .start = brcms_ops_start, | |
709 | .stop = brcms_ops_stop, | |
710 | .add_interface = brcms_ops_add_interface, | |
711 | .remove_interface = brcms_ops_remove_interface, | |
712 | .config = brcms_ops_config, | |
713 | .bss_info_changed = brcms_ops_bss_info_changed, | |
714 | .configure_filter = brcms_ops_configure_filter, | |
715 | .sw_scan_start = brcms_ops_sw_scan_start, | |
716 | .sw_scan_complete = brcms_ops_sw_scan_complete, | |
717 | .conf_tx = brcms_ops_conf_tx, | |
718 | .sta_add = brcms_ops_sta_add, | |
719 | .ampdu_action = brcms_ops_ampdu_action, | |
720 | .rfkill_poll = brcms_ops_rfkill_poll, | |
721 | .flush = brcms_ops_flush, | |
722 | }; | |
723 | ||
724 | /* | |
2e756560 | 725 | * is called in brcms_bcma_probe() context, therefore no locking required. |
5b435de0 AS |
726 | */ |
727 | static int brcms_set_hint(struct brcms_info *wl, char *abbrev) | |
728 | { | |
729 | return regulatory_hint(wl->pub->ieee_hw->wiphy, abbrev); | |
730 | } | |
731 | ||
732 | void brcms_dpc(unsigned long data) | |
733 | { | |
734 | struct brcms_info *wl; | |
735 | ||
736 | wl = (struct brcms_info *) data; | |
737 | ||
738 | spin_lock_bh(&wl->lock); | |
739 | ||
740 | /* call the common second level interrupt handler */ | |
741 | if (wl->pub->up) { | |
742 | if (wl->resched) { | |
743 | unsigned long flags; | |
744 | ||
745 | spin_lock_irqsave(&wl->isr_lock, flags); | |
746 | brcms_c_intrsupd(wl->wlc); | |
747 | spin_unlock_irqrestore(&wl->isr_lock, flags); | |
748 | } | |
749 | ||
750 | wl->resched = brcms_c_dpc(wl->wlc, true); | |
751 | } | |
752 | ||
753 | /* brcms_c_dpc() may bring the driver down */ | |
754 | if (!wl->pub->up) | |
755 | goto done; | |
756 | ||
757 | /* re-schedule dpc */ | |
758 | if (wl->resched) | |
759 | tasklet_schedule(&wl->tasklet); | |
760 | else | |
761 | /* re-enable interrupts */ | |
762 | brcms_intrson(wl); | |
763 | ||
764 | done: | |
765 | spin_unlock_bh(&wl->lock); | |
766 | } | |
767 | ||
768 | /* | |
769 | * Precondition: Since this function is called in brcms_pci_probe() context, | |
770 | * no locking is required. | |
771 | */ | |
772 | static int brcms_request_fw(struct brcms_info *wl, struct pci_dev *pdev) | |
773 | { | |
774 | int status; | |
775 | struct device *device = &pdev->dev; | |
776 | char fw_name[100]; | |
777 | int i; | |
778 | ||
779 | memset(&wl->fw, 0, sizeof(struct brcms_firmware)); | |
780 | for (i = 0; i < MAX_FW_IMAGES; i++) { | |
781 | if (brcms_firmwares[i] == NULL) | |
782 | break; | |
783 | sprintf(fw_name, "%s-%d.fw", brcms_firmwares[i], | |
784 | UCODE_LOADER_API_VER); | |
785 | status = request_firmware(&wl->fw.fw_bin[i], fw_name, device); | |
786 | if (status) { | |
787 | wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n", | |
788 | KBUILD_MODNAME, fw_name); | |
789 | return status; | |
790 | } | |
791 | sprintf(fw_name, "%s_hdr-%d.fw", brcms_firmwares[i], | |
792 | UCODE_LOADER_API_VER); | |
793 | status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device); | |
794 | if (status) { | |
795 | wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n", | |
796 | KBUILD_MODNAME, fw_name); | |
797 | return status; | |
798 | } | |
799 | wl->fw.hdr_num_entries[i] = | |
800 | wl->fw.fw_hdr[i]->size / (sizeof(struct firmware_hdr)); | |
801 | } | |
802 | wl->fw.fw_cnt = i; | |
803 | return brcms_ucode_data_init(wl, &wl->ucode); | |
804 | } | |
805 | ||
806 | /* | |
807 | * Precondition: Since this function is called in brcms_pci_probe() context, | |
808 | * no locking is required. | |
809 | */ | |
810 | static void brcms_release_fw(struct brcms_info *wl) | |
811 | { | |
812 | int i; | |
813 | for (i = 0; i < MAX_FW_IMAGES; i++) { | |
814 | release_firmware(wl->fw.fw_bin[i]); | |
815 | release_firmware(wl->fw.fw_hdr[i]); | |
816 | } | |
817 | } | |
818 | ||
819 | /** | |
820 | * This function frees the WL per-device resources. | |
821 | * | |
822 | * This function frees resources owned by the WL device pointed to | |
823 | * by the wl parameter. | |
824 | * | |
825 | * precondition: can both be called locked and unlocked | |
826 | * | |
827 | */ | |
828 | static void brcms_free(struct brcms_info *wl) | |
829 | { | |
830 | struct brcms_timer *t, *next; | |
831 | ||
832 | /* free ucode data */ | |
833 | if (wl->fw.fw_cnt) | |
834 | brcms_ucode_data_free(&wl->ucode); | |
835 | if (wl->irq) | |
836 | free_irq(wl->irq, wl); | |
837 | ||
838 | /* kill dpc */ | |
839 | tasklet_kill(&wl->tasklet); | |
840 | ||
841 | if (wl->pub) | |
842 | brcms_c_module_unregister(wl->pub, "linux", wl); | |
843 | ||
844 | /* free common resources */ | |
845 | if (wl->wlc) { | |
846 | brcms_c_detach(wl->wlc); | |
847 | wl->wlc = NULL; | |
848 | wl->pub = NULL; | |
849 | } | |
850 | ||
851 | /* virtual interface deletion is deferred so we cannot spinwait */ | |
852 | ||
853 | /* wait for all pending callbacks to complete */ | |
854 | while (atomic_read(&wl->callbacks) > 0) | |
855 | schedule(); | |
856 | ||
857 | /* free timers */ | |
858 | for (t = wl->timers; t; t = next) { | |
859 | next = t->next; | |
8ae74654 | 860 | #ifdef DEBUG |
5b435de0 AS |
861 | kfree(t->name); |
862 | #endif | |
863 | kfree(t); | |
864 | } | |
5b435de0 AS |
865 | } |
866 | ||
867 | /* | |
2646c46d | 868 | * called from both kernel as from this kernel module (error flow on attach) |
5b435de0 AS |
869 | * precondition: perimeter lock is not acquired. |
870 | */ | |
2e756560 | 871 | static void brcms_remove(struct bcma_device *pdev) |
5b435de0 | 872 | { |
2e756560 | 873 | struct ieee80211_hw *hw = bcma_get_drvdata(pdev); |
2646c46d | 874 | struct brcms_info *wl = hw->priv; |
5b435de0 | 875 | |
5b435de0 AS |
876 | if (wl->wlc) { |
877 | wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false); | |
878 | wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy); | |
879 | ieee80211_unregister_hw(hw); | |
5b435de0 | 880 | } |
5b435de0 AS |
881 | |
882 | brcms_free(wl); | |
883 | ||
2e756560 | 884 | bcma_set_drvdata(pdev, NULL); |
5b435de0 AS |
885 | ieee80211_free_hw(hw); |
886 | } | |
887 | ||
888 | static irqreturn_t brcms_isr(int irq, void *dev_id) | |
889 | { | |
890 | struct brcms_info *wl; | |
891 | bool ours, wantdpc; | |
892 | ||
893 | wl = (struct brcms_info *) dev_id; | |
894 | ||
895 | spin_lock(&wl->isr_lock); | |
896 | ||
897 | /* call common first level interrupt handler */ | |
898 | ours = brcms_c_isr(wl->wlc, &wantdpc); | |
899 | if (ours) { | |
900 | /* if more to do... */ | |
901 | if (wantdpc) { | |
902 | ||
903 | /* ...and call the second level interrupt handler */ | |
904 | /* schedule dpc */ | |
905 | tasklet_schedule(&wl->tasklet); | |
906 | } | |
907 | } | |
908 | ||
909 | spin_unlock(&wl->isr_lock); | |
910 | ||
911 | return IRQ_RETVAL(ours); | |
912 | } | |
913 | ||
914 | /* | |
915 | * is called in brcms_pci_probe() context, therefore no locking required. | |
916 | */ | |
917 | static int ieee_hw_rate_init(struct ieee80211_hw *hw) | |
918 | { | |
919 | struct brcms_info *wl = hw->priv; | |
920 | struct brcms_c_info *wlc = wl->wlc; | |
921 | struct ieee80211_supported_band *band; | |
922 | int has_5g = 0; | |
923 | u16 phy_type; | |
924 | ||
925 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL; | |
926 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL; | |
927 | ||
928 | phy_type = brcms_c_get_phy_type(wl->wlc, 0); | |
929 | if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) { | |
930 | band = &wlc->bandstate[BAND_2G_INDEX]->band; | |
931 | *band = brcms_band_2GHz_nphy_template; | |
932 | if (phy_type == PHY_TYPE_LCN) { | |
933 | /* Single stream */ | |
934 | band->ht_cap.mcs.rx_mask[1] = 0; | |
df4492f8 | 935 | band->ht_cap.mcs.rx_highest = cpu_to_le16(72); |
5b435de0 AS |
936 | } |
937 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = band; | |
938 | } else { | |
939 | return -EPERM; | |
940 | } | |
941 | ||
942 | /* Assume all bands use the same phy. True for 11n devices. */ | |
943 | if (wl->pub->_nbands > 1) { | |
944 | has_5g++; | |
945 | if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) { | |
946 | band = &wlc->bandstate[BAND_5G_INDEX]->band; | |
947 | *band = brcms_band_5GHz_nphy_template; | |
948 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = band; | |
949 | } else { | |
950 | return -EPERM; | |
951 | } | |
952 | } | |
953 | return 0; | |
954 | } | |
955 | ||
956 | /* | |
957 | * is called in brcms_pci_probe() context, therefore no locking required. | |
958 | */ | |
959 | static int ieee_hw_init(struct ieee80211_hw *hw) | |
960 | { | |
961 | hw->flags = IEEE80211_HW_SIGNAL_DBM | |
962 | /* | IEEE80211_HW_CONNECTION_MONITOR What is this? */ | |
963 | | IEEE80211_HW_REPORTS_TX_ACK_STATUS | |
964 | | IEEE80211_HW_AMPDU_AGGREGATION; | |
965 | ||
966 | hw->extra_tx_headroom = brcms_c_get_header_len(); | |
967 | hw->queues = N_TX_QUEUES; | |
968 | hw->max_rates = 2; /* Primary rate and 1 fallback rate */ | |
969 | ||
970 | /* channel change time is dependent on chip and band */ | |
971 | hw->channel_change_time = 7 * 1000; | |
972 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); | |
973 | ||
974 | hw->rate_control_algorithm = "minstrel_ht"; | |
975 | ||
976 | hw->sta_data_size = 0; | |
977 | return ieee_hw_rate_init(hw); | |
978 | } | |
979 | ||
980 | /** | |
981 | * attach to the WL device. | |
982 | * | |
983 | * Attach to the WL device identified by vendor and device parameters. | |
984 | * regs is a host accessible memory address pointing to WL device registers. | |
985 | * | |
986 | * brcms_attach is not defined as static because in the case where no bus | |
987 | * is defined, wl_attach will never be called, and thus, gcc will issue | |
988 | * a warning that this function is defined but not used if we declare | |
989 | * it as static. | |
990 | * | |
991 | * | |
2e756560 | 992 | * is called in brcms_bcma_probe() context, therefore no locking required. |
5b435de0 | 993 | */ |
2e756560 | 994 | static struct brcms_info *brcms_attach(struct bcma_device *pdev) |
5b435de0 AS |
995 | { |
996 | struct brcms_info *wl = NULL; | |
997 | int unit, err; | |
998 | struct ieee80211_hw *hw; | |
999 | u8 perm[ETH_ALEN]; | |
1000 | ||
1001 | unit = n_adapters_found; | |
1002 | err = 0; | |
1003 | ||
1004 | if (unit < 0) | |
1005 | return NULL; | |
1006 | ||
1007 | /* allocate private info */ | |
2e756560 | 1008 | hw = bcma_get_drvdata(pdev); |
5b435de0 AS |
1009 | if (hw != NULL) |
1010 | wl = hw->priv; | |
1011 | if (WARN_ON(hw == NULL) || WARN_ON(wl == NULL)) | |
1012 | return NULL; | |
1013 | wl->wiphy = hw->wiphy; | |
1014 | ||
1015 | atomic_set(&wl->callbacks, 0); | |
1016 | ||
1017 | /* setup the bottom half handler */ | |
1018 | tasklet_init(&wl->tasklet, brcms_dpc, (unsigned long) wl); | |
1019 | ||
5b435de0 AS |
1020 | spin_lock_init(&wl->lock); |
1021 | spin_lock_init(&wl->isr_lock); | |
1022 | ||
1023 | /* prepare ucode */ | |
2e756560 | 1024 | if (brcms_request_fw(wl, pdev->bus->host_pci) < 0) { |
5b435de0 AS |
1025 | wiphy_err(wl->wiphy, "%s: Failed to find firmware usually in " |
1026 | "%s\n", KBUILD_MODNAME, "/lib/firmware/brcm"); | |
1027 | brcms_release_fw(wl); | |
2e756560 | 1028 | brcms_remove(pdev); |
5b435de0 AS |
1029 | return NULL; |
1030 | } | |
1031 | ||
1032 | /* common load-time initialization */ | |
b63337a0 | 1033 | wl->wlc = brcms_c_attach((void *)wl, pdev, unit, false, &err); |
5b435de0 AS |
1034 | brcms_release_fw(wl); |
1035 | if (!wl->wlc) { | |
1036 | wiphy_err(wl->wiphy, "%s: attach() failed with code %d\n", | |
1037 | KBUILD_MODNAME, err); | |
1038 | goto fail; | |
1039 | } | |
1040 | wl->pub = brcms_c_pub(wl->wlc); | |
1041 | ||
1042 | wl->pub->ieee_hw = hw; | |
1043 | ||
5b435de0 | 1044 | /* register our interrupt handler */ |
2e756560 AS |
1045 | if (request_irq(pdev->bus->host_pci->irq, brcms_isr, |
1046 | IRQF_SHARED, KBUILD_MODNAME, wl)) { | |
5b435de0 AS |
1047 | wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit); |
1048 | goto fail; | |
1049 | } | |
2e756560 | 1050 | wl->irq = pdev->bus->host_pci->irq; |
5b435de0 AS |
1051 | |
1052 | /* register module */ | |
1053 | brcms_c_module_register(wl->pub, "linux", wl, NULL); | |
1054 | ||
1055 | if (ieee_hw_init(hw)) { | |
1056 | wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit, | |
1057 | __func__); | |
1058 | goto fail; | |
1059 | } | |
1060 | ||
1061 | memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN); | |
1062 | if (WARN_ON(!is_valid_ether_addr(perm))) | |
1063 | goto fail; | |
1064 | SET_IEEE80211_PERM_ADDR(hw, perm); | |
1065 | ||
1066 | err = ieee80211_register_hw(hw); | |
1067 | if (err) | |
1068 | wiphy_err(wl->wiphy, "%s: ieee80211_register_hw failed, status" | |
1069 | "%d\n", __func__, err); | |
1070 | ||
1071 | if (wl->pub->srom_ccode[0]) | |
1072 | err = brcms_set_hint(wl, wl->pub->srom_ccode); | |
1073 | else | |
1074 | err = brcms_set_hint(wl, "US"); | |
1075 | if (err) | |
1076 | wiphy_err(wl->wiphy, "%s: regulatory_hint failed, status %d\n", | |
1077 | __func__, err); | |
1078 | ||
1079 | n_adapters_found++; | |
1080 | return wl; | |
1081 | ||
1082 | fail: | |
1083 | brcms_free(wl); | |
1084 | return NULL; | |
1085 | } | |
1086 | ||
1087 | ||
1088 | ||
1089 | /** | |
1090 | * determines if a device is a WL device, and if so, attaches it. | |
1091 | * | |
1092 | * This function determines if a device pointed to by pdev is a WL device, | |
1093 | * and if so, performs a brcms_attach() on it. | |
1094 | * | |
1095 | * Perimeter lock is initialized in the course of this function. | |
1096 | */ | |
2e756560 | 1097 | static int __devinit brcms_bcma_probe(struct bcma_device *pdev) |
5b435de0 | 1098 | { |
5b435de0 AS |
1099 | struct brcms_info *wl; |
1100 | struct ieee80211_hw *hw; | |
5b435de0 | 1101 | |
2e756560 AS |
1102 | dev_info(&pdev->dev, "mfg %x core %x rev %d class %d irq %d\n", |
1103 | pdev->id.manuf, pdev->id.id, pdev->id.rev, pdev->id.class, | |
1104 | pdev->bus->host_pci->irq); | |
5b435de0 | 1105 | |
2e756560 AS |
1106 | if ((pdev->id.manuf != BCMA_MANUF_BCM) || |
1107 | (pdev->id.id != BCMA_CORE_80211)) | |
5b435de0 | 1108 | return -ENODEV; |
5b435de0 AS |
1109 | |
1110 | hw = ieee80211_alloc_hw(sizeof(struct brcms_info), &brcms_ops); | |
1111 | if (!hw) { | |
1112 | pr_err("%s: ieee80211_alloc_hw failed\n", __func__); | |
1113 | return -ENOMEM; | |
1114 | } | |
1115 | ||
1116 | SET_IEEE80211_DEV(hw, &pdev->dev); | |
1117 | ||
2e756560 | 1118 | bcma_set_drvdata(pdev, hw); |
5b435de0 AS |
1119 | |
1120 | memset(hw->priv, 0, sizeof(*wl)); | |
1121 | ||
2e756560 | 1122 | wl = brcms_attach(pdev); |
5b435de0 AS |
1123 | if (!wl) { |
1124 | pr_err("%s: %s: brcms_attach failed!\n", KBUILD_MODNAME, | |
1125 | __func__); | |
1126 | return -ENODEV; | |
1127 | } | |
1128 | return 0; | |
1129 | } | |
1130 | ||
7d5869e7 | 1131 | static int brcms_suspend(struct bcma_device *pdev) |
5b435de0 AS |
1132 | { |
1133 | struct brcms_info *wl; | |
1134 | struct ieee80211_hw *hw; | |
1135 | ||
2e756560 | 1136 | hw = bcma_get_drvdata(pdev); |
5b435de0 AS |
1137 | wl = hw->priv; |
1138 | if (!wl) { | |
1139 | wiphy_err(wl->wiphy, | |
2e756560 | 1140 | "brcms_suspend: bcma_get_drvdata failed\n"); |
5b435de0 AS |
1141 | return -ENODEV; |
1142 | } | |
1143 | ||
1144 | /* only need to flag hw is down for proper resume */ | |
1145 | spin_lock_bh(&wl->lock); | |
1146 | wl->pub->hw_up = false; | |
1147 | spin_unlock_bh(&wl->lock); | |
1148 | ||
7e9e7fa4 | 1149 | pr_debug("brcms_suspend ok\n"); |
5b435de0 | 1150 | |
2e756560 AS |
1151 | return 0; |
1152 | } | |
1153 | ||
1154 | static int brcms_resume(struct bcma_device *pdev) | |
1155 | { | |
7e9e7fa4 LT |
1156 | pr_debug("brcms_resume ok\n"); |
1157 | return 0; | |
5b435de0 AS |
1158 | } |
1159 | ||
2e756560 | 1160 | static struct bcma_driver brcms_bcma_driver = { |
5b435de0 | 1161 | .name = KBUILD_MODNAME, |
2e756560 | 1162 | .probe = brcms_bcma_probe, |
5b435de0 AS |
1163 | .suspend = brcms_suspend, |
1164 | .resume = brcms_resume, | |
1165 | .remove = __devexit_p(brcms_remove), | |
2e756560 | 1166 | .id_table = brcms_coreid_table, |
5b435de0 AS |
1167 | }; |
1168 | ||
1169 | /** | |
2e756560 | 1170 | * This is the main entry point for the brcmsmac driver. |
5b435de0 AS |
1171 | * |
1172 | * This function determines if a device pointed to by pdev is a WL device, | |
1173 | * and if so, performs a brcms_attach() on it. | |
1174 | * | |
1175 | */ | |
1176 | static int __init brcms_module_init(void) | |
1177 | { | |
1178 | int error = -ENODEV; | |
1179 | ||
8ae74654 | 1180 | #ifdef DEBUG |
5b435de0 AS |
1181 | if (msglevel != 0xdeadbeef) |
1182 | brcm_msg_level = msglevel; | |
8ae74654 | 1183 | #endif /* DEBUG */ |
5b435de0 | 1184 | |
2e756560 AS |
1185 | error = bcma_driver_register(&brcms_bcma_driver); |
1186 | printk(KERN_ERR "%s: register returned %d\n", __func__, error); | |
5b435de0 AS |
1187 | if (!error) |
1188 | return 0; | |
1189 | ||
5b435de0 AS |
1190 | return error; |
1191 | } | |
1192 | ||
1193 | /** | |
2e756560 | 1194 | * This function unloads the brcmsmac driver from the system. |
5b435de0 | 1195 | * |
2e756560 | 1196 | * This function unconditionally unloads the brcmsmac driver module from the |
5b435de0 AS |
1197 | * system. |
1198 | * | |
1199 | */ | |
1200 | static void __exit brcms_module_exit(void) | |
1201 | { | |
2e756560 | 1202 | bcma_driver_unregister(&brcms_bcma_driver); |
5b435de0 AS |
1203 | } |
1204 | ||
1205 | module_init(brcms_module_init); | |
1206 | module_exit(brcms_module_exit); | |
1207 | ||
1208 | /* | |
1209 | * precondition: perimeter lock has been acquired | |
1210 | */ | |
1211 | void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif, | |
1212 | bool state, int prio) | |
1213 | { | |
1214 | wiphy_err(wl->wiphy, "Shouldn't be here %s\n", __func__); | |
1215 | } | |
1216 | ||
1217 | /* | |
1218 | * precondition: perimeter lock has been acquired | |
1219 | */ | |
1220 | void brcms_init(struct brcms_info *wl) | |
1221 | { | |
1222 | BCMMSG(wl->pub->ieee_hw->wiphy, "wl%d\n", wl->pub->unit); | |
1223 | brcms_reset(wl); | |
dc460127 | 1224 | brcms_c_init(wl->wlc, wl->mute_tx); |
5b435de0 AS |
1225 | } |
1226 | ||
1227 | /* | |
1228 | * precondition: perimeter lock has been acquired | |
1229 | */ | |
1230 | uint brcms_reset(struct brcms_info *wl) | |
1231 | { | |
1232 | BCMMSG(wl->pub->ieee_hw->wiphy, "wl%d\n", wl->pub->unit); | |
1233 | brcms_c_reset(wl->wlc); | |
1234 | ||
1235 | /* dpc will not be rescheduled */ | |
3db1cd5c | 1236 | wl->resched = false; |
5b435de0 AS |
1237 | |
1238 | return 0; | |
1239 | } | |
1240 | ||
c261bdf8 RV |
1241 | void brcms_fatal_error(struct brcms_info *wl) |
1242 | { | |
1243 | wiphy_err(wl->wlc->wiphy, "wl%d: fatal error, reinitializing\n", | |
1244 | wl->wlc->pub->unit); | |
1245 | brcms_reset(wl); | |
1246 | ieee80211_restart_hw(wl->pub->ieee_hw); | |
1247 | } | |
1248 | ||
5b435de0 AS |
1249 | /* |
1250 | * These are interrupt on/off entry points. Disable interrupts | |
1251 | * during interrupt state transition. | |
1252 | */ | |
1253 | void brcms_intrson(struct brcms_info *wl) | |
1254 | { | |
1255 | unsigned long flags; | |
1256 | ||
1257 | spin_lock_irqsave(&wl->isr_lock, flags); | |
1258 | brcms_c_intrson(wl->wlc); | |
1259 | spin_unlock_irqrestore(&wl->isr_lock, flags); | |
1260 | } | |
1261 | ||
1262 | u32 brcms_intrsoff(struct brcms_info *wl) | |
1263 | { | |
1264 | unsigned long flags; | |
1265 | u32 status; | |
1266 | ||
1267 | spin_lock_irqsave(&wl->isr_lock, flags); | |
1268 | status = brcms_c_intrsoff(wl->wlc); | |
1269 | spin_unlock_irqrestore(&wl->isr_lock, flags); | |
1270 | return status; | |
1271 | } | |
1272 | ||
1273 | void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask) | |
1274 | { | |
1275 | unsigned long flags; | |
1276 | ||
1277 | spin_lock_irqsave(&wl->isr_lock, flags); | |
1278 | brcms_c_intrsrestore(wl->wlc, macintmask); | |
1279 | spin_unlock_irqrestore(&wl->isr_lock, flags); | |
1280 | } | |
1281 | ||
1282 | /* | |
1283 | * precondition: perimeter lock has been acquired | |
1284 | */ | |
1285 | int brcms_up(struct brcms_info *wl) | |
1286 | { | |
1287 | int error = 0; | |
1288 | ||
1289 | if (wl->pub->up) | |
1290 | return 0; | |
1291 | ||
1292 | error = brcms_c_up(wl->wlc); | |
1293 | ||
1294 | return error; | |
1295 | } | |
1296 | ||
1297 | /* | |
1298 | * precondition: perimeter lock has been acquired | |
1299 | */ | |
1300 | void brcms_down(struct brcms_info *wl) | |
1301 | { | |
1302 | uint callbacks, ret_val = 0; | |
1303 | ||
1304 | /* call common down function */ | |
1305 | ret_val = brcms_c_down(wl->wlc); | |
1306 | callbacks = atomic_read(&wl->callbacks) - ret_val; | |
1307 | ||
1308 | /* wait for down callbacks to complete */ | |
1309 | spin_unlock_bh(&wl->lock); | |
1310 | ||
1311 | /* For HIGH_only driver, it's important to actually schedule other work, | |
1312 | * not just spin wait since everything runs at schedule level | |
1313 | */ | |
1314 | SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000); | |
1315 | ||
1316 | spin_lock_bh(&wl->lock); | |
1317 | } | |
1318 | ||
1319 | /* | |
1320 | * precondition: perimeter lock is not acquired | |
1321 | */ | |
2a7fc5b1 | 1322 | static void _brcms_timer(struct work_struct *work) |
5b435de0 | 1323 | { |
2a7fc5b1 RV |
1324 | struct brcms_timer *t = container_of(work, struct brcms_timer, |
1325 | dly_wrk.work); | |
1326 | ||
5b435de0 AS |
1327 | spin_lock_bh(&t->wl->lock); |
1328 | ||
1329 | if (t->set) { | |
1330 | if (t->periodic) { | |
5b435de0 | 1331 | atomic_inc(&t->wl->callbacks); |
2a7fc5b1 RV |
1332 | ieee80211_queue_delayed_work(t->wl->pub->ieee_hw, |
1333 | &t->dly_wrk, | |
1334 | msecs_to_jiffies(t->ms)); | |
1335 | } else { | |
5b435de0 | 1336 | t->set = false; |
2a7fc5b1 | 1337 | } |
5b435de0 AS |
1338 | |
1339 | t->fn(t->arg); | |
1340 | } | |
1341 | ||
1342 | atomic_dec(&t->wl->callbacks); | |
1343 | ||
1344 | spin_unlock_bh(&t->wl->lock); | |
1345 | } | |
1346 | ||
5b435de0 AS |
1347 | /* |
1348 | * Adds a timer to the list. Caller supplies a timer function. | |
1349 | * Is called from wlc. | |
1350 | * | |
1351 | * precondition: perimeter lock has been acquired | |
1352 | */ | |
1353 | struct brcms_timer *brcms_init_timer(struct brcms_info *wl, | |
1354 | void (*fn) (void *arg), | |
1355 | void *arg, const char *name) | |
1356 | { | |
1357 | struct brcms_timer *t; | |
1358 | ||
1359 | t = kzalloc(sizeof(struct brcms_timer), GFP_ATOMIC); | |
1360 | if (!t) | |
1361 | return NULL; | |
1362 | ||
2a7fc5b1 | 1363 | INIT_DELAYED_WORK(&t->dly_wrk, _brcms_timer); |
5b435de0 AS |
1364 | t->wl = wl; |
1365 | t->fn = fn; | |
1366 | t->arg = arg; | |
1367 | t->next = wl->timers; | |
1368 | wl->timers = t; | |
1369 | ||
8ae74654 | 1370 | #ifdef DEBUG |
5b435de0 AS |
1371 | t->name = kmalloc(strlen(name) + 1, GFP_ATOMIC); |
1372 | if (t->name) | |
1373 | strcpy(t->name, name); | |
1374 | #endif | |
1375 | ||
1376 | return t; | |
1377 | } | |
1378 | ||
1379 | /* | |
1380 | * adds only the kernel timer since it's going to be more accurate | |
1381 | * as well as it's easier to make it periodic | |
1382 | * | |
1383 | * precondition: perimeter lock has been acquired | |
1384 | */ | |
2a7fc5b1 | 1385 | void brcms_add_timer(struct brcms_timer *t, uint ms, int periodic) |
5b435de0 | 1386 | { |
2a7fc5b1 RV |
1387 | struct ieee80211_hw *hw = t->wl->pub->ieee_hw; |
1388 | ||
8ae74654 | 1389 | #ifdef DEBUG |
5b435de0 | 1390 | if (t->set) |
2a7fc5b1 | 1391 | wiphy_err(hw->wiphy, "%s: Already set. Name: %s, per %d\n", |
5b435de0 | 1392 | __func__, t->name, periodic); |
5b435de0 AS |
1393 | #endif |
1394 | t->ms = ms; | |
1395 | t->periodic = (bool) periodic; | |
1396 | t->set = true; | |
5b435de0 | 1397 | |
be69c4ef | 1398 | atomic_inc(&t->wl->callbacks); |
2a7fc5b1 RV |
1399 | |
1400 | ieee80211_queue_delayed_work(hw, &t->dly_wrk, msecs_to_jiffies(ms)); | |
5b435de0 AS |
1401 | } |
1402 | ||
1403 | /* | |
1404 | * return true if timer successfully deleted, false if still pending | |
1405 | * | |
1406 | * precondition: perimeter lock has been acquired | |
1407 | */ | |
be69c4ef | 1408 | bool brcms_del_timer(struct brcms_timer *t) |
5b435de0 AS |
1409 | { |
1410 | if (t->set) { | |
1411 | t->set = false; | |
2a7fc5b1 | 1412 | if (!cancel_delayed_work(&t->dly_wrk)) |
5b435de0 AS |
1413 | return false; |
1414 | ||
be69c4ef | 1415 | atomic_dec(&t->wl->callbacks); |
5b435de0 AS |
1416 | } |
1417 | ||
1418 | return true; | |
1419 | } | |
1420 | ||
1421 | /* | |
1422 | * precondition: perimeter lock has been acquired | |
1423 | */ | |
be69c4ef | 1424 | void brcms_free_timer(struct brcms_timer *t) |
5b435de0 | 1425 | { |
be69c4ef | 1426 | struct brcms_info *wl = t->wl; |
5b435de0 AS |
1427 | struct brcms_timer *tmp; |
1428 | ||
1429 | /* delete the timer in case it is active */ | |
be69c4ef | 1430 | brcms_del_timer(t); |
5b435de0 AS |
1431 | |
1432 | if (wl->timers == t) { | |
1433 | wl->timers = wl->timers->next; | |
8ae74654 | 1434 | #ifdef DEBUG |
5b435de0 AS |
1435 | kfree(t->name); |
1436 | #endif | |
1437 | kfree(t); | |
1438 | return; | |
1439 | ||
1440 | } | |
1441 | ||
1442 | tmp = wl->timers; | |
1443 | while (tmp) { | |
1444 | if (tmp->next == t) { | |
1445 | tmp->next = t->next; | |
8ae74654 | 1446 | #ifdef DEBUG |
5b435de0 AS |
1447 | kfree(t->name); |
1448 | #endif | |
1449 | kfree(t); | |
1450 | return; | |
1451 | } | |
1452 | tmp = tmp->next; | |
1453 | } | |
1454 | ||
1455 | } | |
1456 | ||
1457 | /* | |
1458 | * precondition: perimeter lock has been acquired | |
1459 | */ | |
1460 | int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx) | |
1461 | { | |
1462 | int i, entry; | |
1463 | const u8 *pdata; | |
1464 | struct firmware_hdr *hdr; | |
1465 | for (i = 0; i < wl->fw.fw_cnt; i++) { | |
1466 | hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data; | |
1467 | for (entry = 0; entry < wl->fw.hdr_num_entries[i]; | |
1468 | entry++, hdr++) { | |
1469 | u32 len = le32_to_cpu(hdr->len); | |
1470 | if (le32_to_cpu(hdr->idx) == idx) { | |
1471 | pdata = wl->fw.fw_bin[i]->data + | |
1472 | le32_to_cpu(hdr->offset); | |
1f1d5289 | 1473 | *pbuf = kmemdup(pdata, len, GFP_ATOMIC); |
5b435de0 AS |
1474 | if (*pbuf == NULL) |
1475 | goto fail; | |
1476 | ||
5b435de0 AS |
1477 | return 0; |
1478 | } | |
1479 | } | |
1480 | } | |
1481 | wiphy_err(wl->wiphy, "ERROR: ucode buf tag:%d can not be found!\n", | |
1482 | idx); | |
1483 | *pbuf = NULL; | |
1484 | fail: | |
1485 | return -ENODATA; | |
1486 | } | |
1487 | ||
1488 | /* | |
2e756560 | 1489 | * Precondition: Since this function is called in brcms_bcma_probe() context, |
5b435de0 AS |
1490 | * no locking is required. |
1491 | */ | |
1492 | int brcms_ucode_init_uint(struct brcms_info *wl, size_t *n_bytes, u32 idx) | |
1493 | { | |
1494 | int i, entry; | |
1495 | const u8 *pdata; | |
1496 | struct firmware_hdr *hdr; | |
1497 | for (i = 0; i < wl->fw.fw_cnt; i++) { | |
1498 | hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data; | |
1499 | for (entry = 0; entry < wl->fw.hdr_num_entries[i]; | |
1500 | entry++, hdr++) { | |
1501 | if (le32_to_cpu(hdr->idx) == idx) { | |
1502 | pdata = wl->fw.fw_bin[i]->data + | |
1503 | le32_to_cpu(hdr->offset); | |
1504 | if (le32_to_cpu(hdr->len) != 4) { | |
1505 | wiphy_err(wl->wiphy, | |
1506 | "ERROR: fw hdr len\n"); | |
1507 | return -ENOMSG; | |
1508 | } | |
1509 | *n_bytes = le32_to_cpu(*((__le32 *) pdata)); | |
1510 | return 0; | |
1511 | } | |
1512 | } | |
1513 | } | |
1514 | wiphy_err(wl->wiphy, "ERROR: ucode tag:%d can not be found!\n", idx); | |
1515 | return -ENOMSG; | |
1516 | } | |
1517 | ||
1518 | /* | |
1519 | * precondition: can both be called locked and unlocked | |
1520 | */ | |
1521 | void brcms_ucode_free_buf(void *p) | |
1522 | { | |
1523 | kfree(p); | |
1524 | } | |
1525 | ||
1526 | /* | |
1527 | * checks validity of all firmware images loaded from user space | |
1528 | * | |
2e756560 | 1529 | * Precondition: Since this function is called in brcms_bcma_probe() context, |
5b435de0 AS |
1530 | * no locking is required. |
1531 | */ | |
1532 | int brcms_check_firmwares(struct brcms_info *wl) | |
1533 | { | |
1534 | int i; | |
1535 | int entry; | |
1536 | int rc = 0; | |
1537 | const struct firmware *fw; | |
1538 | const struct firmware *fw_hdr; | |
1539 | struct firmware_hdr *ucode_hdr; | |
1540 | for (i = 0; i < MAX_FW_IMAGES && rc == 0; i++) { | |
1541 | fw = wl->fw.fw_bin[i]; | |
1542 | fw_hdr = wl->fw.fw_hdr[i]; | |
1543 | if (fw == NULL && fw_hdr == NULL) { | |
1544 | break; | |
1545 | } else if (fw == NULL || fw_hdr == NULL) { | |
1546 | wiphy_err(wl->wiphy, "%s: invalid bin/hdr fw\n", | |
1547 | __func__); | |
1548 | rc = -EBADF; | |
1549 | } else if (fw_hdr->size % sizeof(struct firmware_hdr)) { | |
1550 | wiphy_err(wl->wiphy, "%s: non integral fw hdr file " | |
1551 | "size %zu/%zu\n", __func__, fw_hdr->size, | |
1552 | sizeof(struct firmware_hdr)); | |
1553 | rc = -EBADF; | |
1554 | } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) { | |
1555 | wiphy_err(wl->wiphy, "%s: out of bounds fw file size " | |
1556 | "%zu\n", __func__, fw->size); | |
1557 | rc = -EBADF; | |
1558 | } else { | |
1559 | /* check if ucode section overruns firmware image */ | |
1560 | ucode_hdr = (struct firmware_hdr *)fw_hdr->data; | |
1561 | for (entry = 0; entry < wl->fw.hdr_num_entries[i] && | |
1562 | !rc; entry++, ucode_hdr++) { | |
1563 | if (le32_to_cpu(ucode_hdr->offset) + | |
1564 | le32_to_cpu(ucode_hdr->len) > | |
1565 | fw->size) { | |
1566 | wiphy_err(wl->wiphy, | |
1567 | "%s: conflicting bin/hdr\n", | |
1568 | __func__); | |
1569 | rc = -EBADF; | |
1570 | } | |
1571 | } | |
1572 | } | |
1573 | } | |
1574 | if (rc == 0 && wl->fw.fw_cnt != i) { | |
1575 | wiphy_err(wl->wiphy, "%s: invalid fw_cnt=%d\n", __func__, | |
1576 | wl->fw.fw_cnt); | |
1577 | rc = -EBADF; | |
1578 | } | |
1579 | return rc; | |
1580 | } | |
1581 | ||
1582 | /* | |
1583 | * precondition: perimeter lock has been acquired | |
1584 | */ | |
1585 | bool brcms_rfkill_set_hw_state(struct brcms_info *wl) | |
1586 | { | |
1587 | bool blocked = brcms_c_check_radio_disabled(wl->wlc); | |
1588 | ||
1589 | spin_unlock_bh(&wl->lock); | |
1590 | wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked); | |
1591 | if (blocked) | |
1592 | wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy); | |
1593 | spin_lock_bh(&wl->lock); | |
1594 | return blocked; | |
1595 | } | |
1596 | ||
1597 | /* | |
1598 | * precondition: perimeter lock has been acquired | |
1599 | */ | |
1600 | void brcms_msleep(struct brcms_info *wl, uint ms) | |
1601 | { | |
1602 | spin_unlock_bh(&wl->lock); | |
1603 | msleep(ms); | |
1604 | spin_lock_bh(&wl->lock); | |
1605 | } |